Strong FR wheelset

I have a friend who just bought a hardrock sport and is looking to get a new wheelset that: 1)can handle disc brakes, 2)Is double walled or atleast pretty strong(capable of around 4-5 foot drops to flat maybe less) and 3) is relatively inexpensive around 200 for front and rear a little more or less is good, any suggestions

P.S: I suggested to him to just get the sport disc and save the money but he is EXTREMELY impatient and wanted the bike today, not tomorrow and he wanted to pick out his own stuff.

Trying to remember, they are the WTB ones right. If so the sidewalls on them are like butter. They are super easy to dent and flatspot. My mate has some on his Ironhorse Sunday, first time DHing (then again it was a veryu rocky track) he had the biggest dent I have ever seen in a sidewall. Other riders who were with us said that it was not uncommon for WTB rims to dent and flat spot. Then again we like our tracks fast and rocky down here